I like them. I particularly like the ones with the clouds - the first one in row 1 and the second one in row 2.
Some suggestions - the first has been drilled into me by Sargeant Major TT - re-size the pictures to 1600*1200 for more sharp images and use some photoshop sharpening and save at the highest possible resolution. This will make a difference.
Another suggestion perhaps for the flower image: Crop close to the flower with the bee in it would improve the impact of that picture.
Also, you could try and reduce the depth of field to blur the background more - standing a bit further away and zoom in more or increase the aperture or any other means. That way the flower will really standout.
Another trick could be to reduce the aperture a lot to darken most of the image and use the flash to light up the flower as I did with the leaf in the next picture.
Threaded Mode